diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 72aee8d9..d9d1834d 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up cache for ~./m2/repository
-        uses: actions/cache@v2
+        uses: actions/cache@v2.1.5
         with:
           path: ~/.m2/repository
           key: maven-${{ matrix.os }}-java${{ matrix.java }}-${{ hashFiles('**/pom.xml') }}